Books in Star Trek: Deep Space Nine series

When Quark holds a poker tournament on "Deep Space Nine" TM someone from almost every sentient race -- Klingons, Cardassians, Romulans, Vulcans, Ferengi -- shows up for what is sure to be the highest-stakes game of all time. But when one player is killed, the stakes get higher than even these big-money players had counted on. With the station rocked by subspace waves that threaten its destruction, Commander Sisko and Security Chief Odo must hunt down the killer in time to save the players, a killer who has information that can save those onboard "Deep Space Nine" from the invisible enemy they do not even know they face, a killer who holds all the cards.

While living on "Deep Space Nine" TM, Jake Sisko has seen a lot of strange things, since his father, commander of the station, opened it to every lifeform who passes through this sector of space. But when Jake's Ferengi friend Nog says he's seen a ghost, Jake doesn't believe him, until a shimmering figure with glowing red eyes appears in Jake's quarters. Soon enough the spectre has Jake on a dangerous mission into the depths of the station, with the fate of "Deep Space Nine" resting on his boyish shoulders.

Commander Sisko has made Jake an offer he can't refuse -- the chance to attend Starfleet Academy Summer Space Camp on Rijar, once home to an ancient civilization, now an archaeologist's dream. Jake's father has even agreed to send Nog. Jake is looking forward to the adventure and maybe finding something in the ruins to write a story about. But from the day they arrive it's a disaster! The best friends are on their way to becoming worst enemies -- until an accident triggers the countdown of a megabomb that threatens the entire planet! Jake and Nog lead an expedition into the catacombs under the base in a desperate race against time. Their only hope is a terrifying voyage into cyberspace to gain control of the ticking bomb that is about to explode...